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Gamma Radiation Sensitivity and Quantitative Characters in M1 Generation of Heteropappus hispidus (Thunb.)
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 Title & Authors
Gamma Radiation Sensitivity and Quantitative Characters in M1 Generation of Heteropappus hispidus (Thunb.)
Oh, Byung-Kwon; Hong, Kyung-Ae; Song, Sung-Jun; Lee, Sun-Joo; Lee, Young-Il; U., Zang-Kual;
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The seeds of naturally growing Heteropappus hispidus (Thunb.) were treated by nine different doses (0, 10, 20, 40, 80, 120, 160, 200, 300, 400 Gy) of gamma rays to investigate their germination rate and to quantity the characteristics of their germinated plants as like as leaf appearance and length, the formation rate of anthocyanin color in stem 30 days after germination, the formation rate of rosette leaf and multi-shoot, the flowering and seed-bearing, and shoot length. The germination rate at least up to 120Gy was not greatly affected but was rapidly decreased at over 160Gy. It seemed that lethal dose () of germination was 160Gy. The leaf appearance and growth was also inhibited, but the formation rate of anthocyanin color in the flower stem was enhanced up to 30% with dose. The rosette plants were observed in plants irradiated with higher than 40Gy. Multi-shoots were developed over 80Gy. For a short shoot length and bundle of thin stem, it was considered that they can be selected as the potential pot flower plants, through genetic fixation. In particular, it was suggested that the formation of anthocyanin color in flower stem, rosette and multi-shoot plants induced by the high dose of gamma rays could be utilized as the morphological markers for the mutant selection of Heteropappus hispidus (Thunb.).
Heteropappus hispidus (Thunb.);gamma radiation;germination;lethality;radiosensitivity;quantitative characteristic;
 Cited by
양성자 및 감마선 처리가 유채 $M_1$ 세대의 감수성에 미치는 영향,은종선;김준수;임환수;한석교;최소라;장영석;

원예과학기술지, 2007. vol.25. 1, pp.17-23
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